# Search by property

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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

## List of results

- In the paper mill description in Section 1.8, "production unit" should be "production units" +
*(Kai Kirk)* - In Section 6.3, there is a discrepancy between variables for discrete/continuous +
*(Kai Kirk)* - In Example 6.8, signalsith should be signals with +
*(Kai Kirk)* - In Section 2.2, one too many parentheses in an expression for y(t) +
*(Kai Kirk)* - In Equation 10.1, there's a typo 0 instead of ')' +
*(Kai Kirk)* - Equation 2.11 is not equal to the preceding expression from which it came +
*(Kai Kirk)*

**Display equation above equation (2.12) has extra set of parentheses +***(Kirk Kai)***In the air-fuel example in Section 1.8, missing reference to Figure 1.16b +***(Kirk Kai)*

- Ziegler-Nichols tuning rules don't quite match the original gains from the Ziegler-Nichols paper +
*(Richard Murray)* - Original Ziegler-Nichols gains listed after improved tuning rules are incorrect +
*(Richard Murray)* - Updated tuning rules are incorrect in equation (11.10b) +
*(Richard Murray)* - In Example 13.6 (Vinnicombe metric), the formula for conjugate point is missing a minus sign +
*(Richard Murray)*